It has just been revealed that John Luper - who was killed by robbers at his home - was suffocated to death.

So far, police have offered several explanations as to how Mr Luper - whose management group represents soccer stars including Rio Ferdinand and Thierry Henry - was made unconscious and killed in a £100,000 robbery at his luxury home in Alwoodley, north Leeds.

But at an inquest it was revealed that the cause of death was asphyxiation.

Mr Luper was a close friend of former Huddersfield Town chairman David Taylor and had been a guest at Town games.

Mystery surrounds exactly how Mr Luper was killed, but it is now thought he may have suffered pressure to his neck or chest.

Among earlier theories was that he may have been killed by an electric stun gun.

The 6ft, 16-stone millionaire was over-powered during the attack on February 17.

The gang attacked Mr Luper's wife, Iyician, and daughter Liza Rose, 20, in their beds before tying them up with tape, along with an au pair who lived downstairs.